John r



UNITED STATES- PATENT Fries.

JOHN a. BRODIE, on NEW YORK, N. Y.

PERM UTATlON-PADLOCK.

SPECIFICATION forming part of Letters Patent N 0. 615,525, datedDecember 6, 1898.

Application filed February 1,1897. Serial No. 621,449. (No model.)

To all whont it may concern:

Be it known that I, JOHN R. BRODIE, a citizen of the United States ofAmerica, residing in New York, (Brooklyn,) in the county of It will nowbe seen that if each pair-ale, one tumbler 'i and one index-piece Z.beplaced upon the post cand all of these be so located as to bring theslots j in line with the slot in Kings and State of New 1 ork, haveinvented new and useful Improvements in Permutation-Locks, of which thefollowing is a specification, reference being had to the accompanyingdrawings and the letters of reference marked thereon.

In the drawings like letters of reference indicate like parts.

Figure 1 is a perspective view of the lock complete. Fig. 2 is a likeview of a portion of the body of the lock. Fig. 3 is a like view of theother body portion. Fig. 4 is a perspective View of the split cap-screw;and Figs. 5 and 6 are views of the tumblers and indexrings,respectively.

The construction and operation of my device are as follows: v

A plate or part a is provided, having secured thereto or made integraltherewith the posts I) and c. The post 0 is hollow and'is provided witha longitudinal slot, and the interior at the end is threaded, as shownatd. The post I) is also recessed a sufficient distance to receive thepost 2 upon the opposite piece.

The plate f is provided with a post 9, having projecting pieces or lugsh, and is also provided with a post 6, adapted to enter the opening inthe post I). The post 9 is adapted to enter the opening in the post 0,and the lugs 71. project through the slotin the post 0. The tumbler 11(shown in Fig. 5) is provided with a slot j of sufficient depth to allowthe passage of the lugs h and also provided with pins it. Theindex-pieces Z are provided with a central opening of sufficientdiameter to allow the passage of the lugs h, while the pieces Z aremounted on the post a, they being kept in central position by thetumblers 1;,- whose pins enter openings or in the index-pieces l. Thescrew 71 (shown in Fig. 4) is provided with a head 0 of sufiioientdiameter to prevent the escape of the tumblers z' from the post 0, andthis screw is also provided with a central opening sufliciently large toallow the passage of the lugs h. The distance between thelugs h issubstantially the same asthe thickness of the tumblers '5.

the post 0 then the post 9 and lugs It may be carried to a position tobring the end of the post 0 against the body f and that if any of thesepairs be turned in either direction the slot j in the tumbler so turnedwill be moved out of registry with lugs h, and it will be impossible toseparate the parts until all of the tumblers be brought into registrywith their respective slots in line with the lugs It.

If it is desired to change the combination, it simply becomes necessaryto remove the screw 12 from the post 0, take off one or more of thepairs, detach the tumbler from the index-piece, again attach it indifferent position, and return the pairs to their first position uponthe post, and the combination may also be changed by removing theseveral pairs and replacin g them upon the post 0 in difierent order.

It will also be observed that other means of detachably lockin g thetumblers to the indeX-pieces may be employed. For instance, the tumblersmay be irregularly shaped or regularly shaped, with six sides, eightsides, or otherwise, and rest within a recess of like shape in theindex-piece.

Having therefore described my invention, whatl claim, and desire tosecure by Letters Patent, is-

1. The combination in a permutationdock of two plates one having athreaded post provided with a recessed slot and the other having a postprovided with lugs adapted to enter the recess and slot in the oppositepost,

tumblers having pins; indicating-rings provided with a series ofopenings to register with said pins, said tumblers being mounted uponthe recessed posts; a hollow and slotted screw it to engage saidthreaded post and hold said tumblers and indicating-rings thereon, andother posts mounted on said plates, one adapted to enter a recess in theother, substantially as shown.

2. The combination in apermutation-lock, of a plate a having posts I)and c, the post 0 being recessed and slotted and having a thread at theend portion thereof; a plate f having posts 6 and g, the post 9 beingadapted to enadapted to engage the thread (2 in the post a [o and havinga head of larger diameter than the circular opening in the tumblers 2,substantially as and for the purposes shown.

JOHN R. BRODIE.

ter the recess in the post 0 and having lugs h adapted to enter theslotin the post 0 and projecting beyond the surface of the post 0,tumblers 1' having a circular opening adapted l to fit the post 0 andhaving a slot j to pass I over the lugs h When the post g is in positionI in the post 0 and. provided also with pins k,

Witnesses:

WILLIAM H. BRODIE, W. L. SAWYER,

rings Z having a series of openings to register GEORGE C. LAVERY.

with the pins 7s, a hollow and slotted screw n

